21823620

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{571}}^1$

素因数の和:610

約数の個数: 144

約数和(自身を含む): 76684608

約数和(自身を除く): 54860988

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 42, 49, 52, 60, 65, 70, 78, 84, 91, 98, 105, 130, 140, 147, 156, 182, 195, 196, 210, 245, 260, 273, 294, 364, 390, 420, 455, 490, 546, 571, 588, 637, 735, 780, 910, 980, 1092, 1142, 1274, 1365, 1470, 1713, 1820, 1911, 2284, 2548, 2730, 2855, 2940, 3185, 3426, 3822, 3997, 5460, 5710, 6370, 6852, 7423, 7644, 7994, 8565, 9555, 11420, 11991, 12740, 14846, 15988, 17130, 19110, 19985, 22269, 23982, 27979, 29692, 34260, 37115, 38220, 39970, 44538, 47964, 51961, 55958, 59955, 74230, 79940, 83937, 89076, 103922, 111345, 111916, 119910, 139895, 148460, 155883, 167874, 207844, 222690, 239820, 259805, 279790, 311766, 335748, 363727, 419685, 445380, 519610, 559580, 623532, 727454, 779415, 839370, 1039220, 1091181, 1454908, 1558830, 1678740, 1818635, 2182362, 3117660, 3637270, 4364724, 5455905, 7274540, 10911810, 21823620]

約数ペア:

[(1, 21823620), (2, 10911810), (3, 7274540), (4, 5455905), (5, 4364724), (6, 3637270), (7, 3117660), (10, 2182362), (12, 1818635), (13, 1678740), (14, 1558830), (15, 1454908), (20, 1091181), (21, 1039220), (26, 839370), (28, 779415), (30, 727454), (35, 623532), (39, 559580), (42, 519610), (49, 445380), (52, 419685), (60, 363727), (65, 335748), (70, 311766), (78, 279790), (84, 259805), (91, 239820), (98, 222690), (105, 207844), (130, 167874), (140, 155883), (147, 148460), (156, 139895), (182, 119910), (195, 111916), (196, 111345), (210, 103922), (245, 89076), (260, 83937), (273, 79940), (294, 74230), (364, 59955), (390, 55958), (420, 51961), (455, 47964), (490, 44538), (546, 39970), (571, 38220), (588, 37115), (637, 34260), (735, 29692), (780, 27979), (910, 23982), (980, 22269), (1092, 19985), (1142, 19110), (1274, 17130), (1365, 15988), (1470, 14846), (1713, 12740), (1820, 11991), (1911, 11420), (2284, 9555), (2548, 8565), (2730, 7994), (2855, 7644), (2940, 7423), (3185, 6852), (3426, 6370), (3822, 5710), (3997, 5460)]