215401403

素因数分解:

$7^2\times {\mathrm{149}}^1\times {\mathrm{163}}^1\times {\mathrm{181}}^1$

素因数の和:507

約数の個数: 24

約数和(自身を含む): 255200400

約数和(自身を除く): 39798997

約数列:

[1, 7, 49, 149, 163, 181, 1043, 1141, 1267, 7301, 7987, 8869, 24287, 26969, 29503, 170009, 188783, 206521, 1190063, 1321481, 1445647, 4395947, 30771629, 215401403]

約数ペア:

[(1, 215401403), (7, 30771629), (49, 4395947), (149, 1445647), (163, 1321481), (181, 1190063), (1043, 206521), (1141, 188783), (1267, 170009), (7301, 29503), (7987, 26969), (8869, 24287)]