21963045

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{83}}^1$

素因数の和:186

約数の個数: 64

約数和(自身を含む): 40642560

約数和(自身を除く): 18679515

約数列:

[1, 3, 5, 13, 15, 23, 39, 59, 65, 69, 83, 115, 177, 195, 249, 295, 299, 345, 415, 767, 885, 897, 1079, 1245, 1357, 1495, 1909, 2301, 3237, 3835, 4071, 4485, 4897, 5395, 5727, 6785, 9545, 11505, 14691, 16185, 17641, 20355, 24485, 24817, 28635, 52923, 63661, 73455, 74451, 88205, 112631, 124085, 190983, 264615, 318305, 337893, 372255, 563155, 954915, 1464203, 1689465, 4392609, 7321015, 21963045]

約数ペア:

[(1, 21963045), (3, 7321015), (5, 4392609), (13, 1689465), (15, 1464203), (23, 954915), (39, 563155), (59, 372255), (65, 337893), (69, 318305), (83, 264615), (115, 190983), (177, 124085), (195, 112631), (249, 88205), (295, 74451), (299, 73455), (345, 63661), (415, 52923), (767, 28635), (885, 24817), (897, 24485), (1079, 20355), (1245, 17641), (1357, 16185), (1495, 14691), (1909, 11505), (2301, 9545), (3237, 6785), (3835, 5727), (4071, 5395), (4485, 4897)]