21975210

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{181}}^1$

素因数の和:284

約数の個数: 96

約数和(自身を含む): 61326720

約数和(自身を除く): 39351510

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 19, 30, 38, 45, 57, 71, 90, 95, 114, 142, 171, 181, 190, 213, 285, 342, 355, 362, 426, 543, 570, 639, 710, 855, 905, 1065, 1086, 1278, 1349, 1629, 1710, 1810, 2130, 2698, 2715, 3195, 3258, 3439, 4047, 5430, 6390, 6745, 6878, 8094, 8145, 10317, 12141, 12851, 13490, 16290, 17195, 20235, 20634, 24282, 25702, 30951, 34390, 38553, 40470, 51585, 60705, 61902, 64255, 77106, 103170, 115659, 121410, 128510, 154755, 192765, 231318, 244169, 309510, 385530, 488338, 578295, 732507, 1156590, 1220845, 1465014, 2197521, 2441690, 3662535, 4395042, 7325070, 10987605, 21975210]

約数ペア:

[(1, 21975210), (2, 10987605), (3, 7325070), (5, 4395042), (6, 3662535), (9, 2441690), (10, 2197521), (15, 1465014), (18, 1220845), (19, 1156590), (30, 732507), (38, 578295), (45, 488338), (57, 385530), (71, 309510), (90, 244169), (95, 231318), (114, 192765), (142, 154755), (171, 128510), (181, 121410), (190, 115659), (213, 103170), (285, 77106), (342, 64255), (355, 61902), (362, 60705), (426, 51585), (543, 40470), (570, 38553), (639, 34390), (710, 30951), (855, 25702), (905, 24282), (1065, 20634), (1086, 20235), (1278, 17195), (1349, 16290), (1629, 13490), (1710, 12851), (1810, 12141), (2130, 10317), (2698, 8145), (2715, 8094), (3195, 6878), (3258, 6745), (3439, 6390), (4047, 5430)]