21798036

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{991}}^1$

素因数の和:1061

約数の個数: 72

約数和(自身を含む): 60662784

約数和(自身を除く): 38864748

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 47, 52, 78, 94, 117, 141, 156, 188, 234, 282, 423, 468, 564, 611, 846, 991, 1222, 1692, 1833, 1982, 2444, 2973, 3666, 3964, 5499, 5946, 7332, 8919, 10998, 11892, 12883, 17838, 21996, 25766, 35676, 38649, 46577, 51532, 77298, 93154, 115947, 139731, 154596, 186308, 231894, 279462, 419193, 463788, 558924, 605501, 838386, 1211002, 1676772, 1816503, 2422004, 3633006, 5449509, 7266012, 10899018, 21798036]

約数ペア:

[(1, 21798036), (2, 10899018), (3, 7266012), (4, 5449509), (6, 3633006), (9, 2422004), (12, 1816503), (13, 1676772), (18, 1211002), (26, 838386), (36, 605501), (39, 558924), (47, 463788), (52, 419193), (78, 279462), (94, 231894), (117, 186308), (141, 154596), (156, 139731), (188, 115947), (234, 93154), (282, 77298), (423, 51532), (468, 46577), (564, 38649), (611, 35676), (846, 25766), (991, 21996), (1222, 17838), (1692, 12883), (1833, 11892), (1982, 10998), (2444, 8919), (2973, 7332), (3666, 5946), (3964, 5499)]