20166819309

素因数分解:

$3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{25307}}^1$

素因数の和:25479

約数の個数: 72

約数和(自身を含む): 36756326880

約数和(自身を除く): 16589507571

約数列:

[1, 3, 7, 9, 13, 21, 39, 49, 63, 91, 117, 139, 147, 273, 417, 441, 637, 819, 973, 1251, 1807, 1911, 2919, 5421, 5733, 6811, 8757, 12649, 16263, 20433, 25307, 37947, 61299, 75921, 88543, 113841, 177149, 227763, 265629, 328991, 531447, 796887, 986973, 1240043, 1594341, 2302937, 2960919, 3517673, 3720129, 6908811, 10553019, 11160387, 16120559, 20726433, 24623711, 31659057, 45729749, 48361677, 73871133, 137189247, 145085031, 172365977, 221613399, 320108243, 411567741, 517097931, 960324729, 1551293793, 2240757701, 2880974187, 6722273103, 20166819309]

約数ペア:

[(1, 20166819309), (3, 6722273103), (7, 2880974187), (9, 2240757701), (13, 1551293793), (21, 960324729), (39, 517097931), (49, 411567741), (63, 320108243), (91, 221613399), (117, 172365977), (139, 145085031), (147, 137189247), (273, 73871133), (417, 48361677), (441, 45729749), (637, 31659057), (819, 24623711), (973, 20726433), (1251, 16120559), (1807, 11160387), (1911, 10553019), (2919, 6908811), (5421, 3720129), (5733, 3517673), (6811, 2960919), (8757, 2302937), (12649, 1594341), (16263, 1240043), (20433, 986973), (25307, 796887), (37947, 531447), (61299, 328991), (75921, 265629), (88543, 227763), (113841, 177149)]