21803670

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{653}}^1$

素因数の和:726

約数の個数: 96

約数和(自身を含む): 66111552

約数和(自身を除く): 44307882

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 53, 63, 70, 90, 105, 106, 126, 159, 210, 265, 315, 318, 371, 477, 530, 630, 653, 742, 795, 954, 1113, 1306, 1590, 1855, 1959, 2226, 2385, 3265, 3339, 3710, 3918, 4571, 4770, 5565, 5877, 6530, 6678, 9142, 9795, 11130, 11754, 13713, 16695, 19590, 22855, 27426, 29385, 33390, 34609, 41139, 45710, 58770, 68565, 69218, 82278, 103827, 137130, 173045, 205695, 207654, 242263, 311481, 346090, 411390, 484526, 519135, 622962, 726789, 1038270, 1211315, 1453578, 1557405, 2180367, 2422630, 3114810, 3633945, 4360734, 7267890, 10901835, 21803670]

約数ペア:

[(1, 21803670), (2, 10901835), (3, 7267890), (5, 4360734), (6, 3633945), (7, 3114810), (9, 2422630), (10, 2180367), (14, 1557405), (15, 1453578), (18, 1211315), (21, 1038270), (30, 726789), (35, 622962), (42, 519135), (45, 484526), (53, 411390), (63, 346090), (70, 311481), (90, 242263), (105, 207654), (106, 205695), (126, 173045), (159, 137130), (210, 103827), (265, 82278), (315, 69218), (318, 68565), (371, 58770), (477, 45710), (530, 41139), (630, 34609), (653, 33390), (742, 29385), (795, 27426), (954, 22855), (1113, 19590), (1306, 16695), (1590, 13713), (1855, 11754), (1959, 11130), (2226, 9795), (2385, 9142), (3265, 6678), (3339, 6530), (3710, 5877), (3918, 5565), (4571, 4770)]