21611460

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{269}}^1$

素因数の和:397

約数の個数: 96

約数和(自身を含む): 66044160

約数和(自身を除く): 44432700

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 103, 130, 156, 195, 206, 260, 269, 309, 390, 412, 515, 538, 618, 780, 807, 1030, 1076, 1236, 1339, 1345, 1545, 1614, 2060, 2678, 2690, 3090, 3228, 3497, 4017, 4035, 5356, 5380, 6180, 6695, 6994, 8034, 8070, 10491, 13390, 13988, 16068, 16140, 17485, 20085, 20982, 26780, 27707, 34970, 40170, 41964, 52455, 55414, 69940, 80340, 83121, 104910, 110828, 138535, 166242, 209820, 277070, 332484, 360191, 415605, 554140, 720382, 831210, 1080573, 1440764, 1662420, 1800955, 2161146, 3601910, 4322292, 5402865, 7203820, 10805730, 21611460]

約数ペア:

[(1, 21611460), (2, 10805730), (3, 7203820), (4, 5402865), (5, 4322292), (6, 3601910), (10, 2161146), (12, 1800955), (13, 1662420), (15, 1440764), (20, 1080573), (26, 831210), (30, 720382), (39, 554140), (52, 415605), (60, 360191), (65, 332484), (78, 277070), (103, 209820), (130, 166242), (156, 138535), (195, 110828), (206, 104910), (260, 83121), (269, 80340), (309, 69940), (390, 55414), (412, 52455), (515, 41964), (538, 40170), (618, 34970), (780, 27707), (807, 26780), (1030, 20982), (1076, 20085), (1236, 17485), (1339, 16140), (1345, 16068), (1545, 13988), (1614, 13390), (2060, 10491), (2678, 8070), (2690, 8034), (3090, 6994), (3228, 6695), (3497, 6180), (4017, 5380), (4035, 5356)]