21921516

素因数分解:

$2^2\times 3^5\times {\mathrm{19}}^1\times {\mathrm{1187}}^1$

素因数の和:1225

約数の個数: 72

約数和(自身を含む): 60540480

約数和(自身を除く): 38618964

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 27, 36, 38, 54, 57, 76, 81, 108, 114, 162, 171, 228, 243, 324, 342, 486, 513, 684, 972, 1026, 1187, 1539, 2052, 2374, 3078, 3561, 4617, 4748, 6156, 7122, 9234, 10683, 14244, 18468, 21366, 22553, 32049, 42732, 45106, 64098, 67659, 90212, 96147, 128196, 135318, 192294, 202977, 270636, 288441, 384588, 405954, 576882, 608931, 811908, 1153764, 1217862, 1826793, 2435724, 3653586, 5480379, 7307172, 10960758, 21921516]

約数ペア:

[(1, 21921516), (2, 10960758), (3, 7307172), (4, 5480379), (6, 3653586), (9, 2435724), (12, 1826793), (18, 1217862), (19, 1153764), (27, 811908), (36, 608931), (38, 576882), (54, 405954), (57, 384588), (76, 288441), (81, 270636), (108, 202977), (114, 192294), (162, 135318), (171, 128196), (228, 96147), (243, 90212), (324, 67659), (342, 64098), (486, 45106), (513, 42732), (684, 32049), (972, 22553), (1026, 21366), (1187, 18468), (1539, 14244), (2052, 10683), (2374, 9234), (3078, 7122), (3561, 6156), (4617, 4748)]